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UPSC Combined Geo-Scientist

Chemist

  • 3 descriptive papers
  • 200 marks each
  • 3 h per paper

Mains Paper II covers physical chemistry.

UPSC Combined Geo-Scientist, Mains · 2019 · Mains Paper II

Q3(b). Isotonic glucose concentration

Question

At 37° C the osmotic pressure of blood is 7.65 atm. Calculate glucose mass per litre for an ideal isotonic solution. Glucose molar mass is 180 g mol⁻¹.

Answer in brief

The ideal colligative calculation gives 54.1 g L⁻¹ glucose.

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The full model answer

As written for the answer booklet: the diagram carries the working, the lines stay short. Read here only; it is not offered as a download.

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CoversIsotonic glucose concentrationOsmotic pressure

All parts of Question 3